In Lingthusiasm Episode 33 Lauren Gawne and Gretchen McCulloch discuss spelling.
Gretchen: I think of spelling systems across languages as kind of like living in a house. When you first move into a house, you unpack everything and you hopefully say, “Okay. I’m gonna be organised this time.” And you say, “This is where everything’s gonna go.” But the longer you’ve lived in a house, the more random boxes of stuff in the attic you have.
Lauren: English has lived in the house of the Latin alphabet for a very long time.
The ICAO Radiotelephony Alphabet (aka NATO Phonetic Alphabet) is a spelling alphabet used to say letters aloud on the radio or telephone. It is used internationally by airlines, armed forces, the police, etc.
It can also be used by international students when (for example) spelling their names. So, if your family name is Zhang, you would say Zulu Hotel Alfa November Golf.